Ch.18 - ElectrochemistryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is: 2Li(s) + Ag2CrO4(s)  →  Li2CrO4(s) + 2Ag(s)Write the anode reaction.

Solution: Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is:2Li(s) + Ag2CrO4(s)  →  Li2CrO4(s) + 2Ag(s)Write the anode reaction.

Problem

Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is:
2Li(s) + Ag2CrO4(s)  →  Li2CrO4(s) + 2Ag(s)

Write the anode reaction.

Solution

We’re being asked to indicate the half-reactions occurring at the anode.


2 Li(s) + Ag2CrO4(s)  →  Li2CrO4(s) + 2 Ag(s)


We’ll identify the anode and cathode half-reactions using the following steps.

Step 1. Separate the overall reaction into two half-reactions
Step 2. Separate the compound to ions
Step 4. Determine the oxidation half-reaction and the reduction half-reaction. 
Step 5. Identify the anode and cathode half-reaction.


Step 1. Separate the overall reaction into two half-reactions


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